#include "game.h"


//初始化棋盘
void InitBoard(char board[ROW][COL], int row, int col)
{
    int i = 0;
    int j = 0;
    for (i = 0; i < row; i++)
    {
        for (j = 0; j < col; j++)
        {
            board[i][j] = ' ';
        }
    }
}

//打印棋盘
void DisplayBoard(char board[ROW][COL], int row, int col)
{
    int i = 0;
    int j = 0;
    for (i = 0; i < row; i++)
    {
        for (j = 0; j < col; j++)
        {
            printf(" %c ", board[i][j]);
            if(j < col - 1)
            {
                printf("|");
            }
        }
        printf("\n");
        if (i < row - 1)
        {
            for (j = 0; j < col; j++)
            {
                printf("---");
                if(j < col-1)
                {
                    printf("|");
                }
                
            }
            printf("\n");
        }
    }
    printf("-----------------------\n");
}


//玩家、电脑对弈
void PlayerMove(char board[ROW][COL], int row, int col)
{
    int x = 0;
    int y = 0;
    while(1)
    {
        printf("玩家移动棋子：\n");
        printf("请输入下棋的坐标：");
        scanf("%d %d", &x, &y);
        if (x >= 1 && x <= row && y >= 1 && y <= col)
        {
            //下棋
            //判断棋盘是否被占用
            if (board[x-1][y-1] == ' ')
            {
                board[x-1][y-1] = '*';
                break;
            }
            else
            {
                printf("坐标被占用，请重新输入\n");
            }
        }
        else
        {
            printf("坐标非法，请重新输入\n");
        }

    }
}

void ComputerMove(char board[ROW][COL], int row, int col)
{
    printf("电脑下棋...\n");
    while (1)
    {
        int x = rand()%row;
        int y = rand()%col;
        if (board[x][y] == ' ')
        {
            board[x][y] = '#';
            break;
        }
    }
}


//判断棋盘格子是否已经满了
int IsFull(char board[ROW][COL], int row, int col)
{
    int i = 0;
    int j = 0;
    for (i = 0; i < row; i++)
    {
        for(j = 0; j < col; j++)
        {
            if (board[i][j] == ' ')
            {
                return 0;//棋盘没满
            }
        }
    }
    return 1; //棋盘已满
}

//判断输赢

char IsWin(char board[ROW][COL], int row, int col)
{
    int i = 0;
    int j = 0;
    //判断三行
    for (i = 0; i < row; i++)
    {
        if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
        {
            return board[i][1];
        }
        
    }
    //判断三列
    for (j = 0; j < row; j++)
    {
        if (board[0][j] == board[1][j] && board[1][j] == board[2][j] && board[1][j] != ' ')
        {
            return board[1][j];
        }
        
    }
    //判断对角线
    if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
    {
        return board[1][1];
    }
    if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
    {
        return board[1][1];
    }

    //判断平局
    int ret = IsFull(board, row, col);
    if (ret == 1)
    {
        return 'Q';
    }
    return 'C';
}